Trussed girder, roof framing using the trussed girder and method

Details Trussed girder, roof framing using the trussed girder and method Trussed girder, roof framing using the trussed girder and method

1986-08-06

1987-10-06

Perham, Alfred C.

Static structures (e.g., buildings)

With component having discrete prestressing means

Beam, girder, or truss construction

52745, E04B 124, E04C 310

Patent

active

046973974

ABSTRACT:
Trussed girder, roof framing using the trussed girder and method of constructing the roof framing of a building using the trussed girder. In the trussed girder, an upper chord and a lower chord are jointed through lattice members. The trussed girder includes: a prestressing steel member; and an attaching mechanism for attaching the prestressing steel member to at least one of both the upper and lower chords to longitudinally extend under tension for providing prestress to the trussed girder.

REFERENCES:
patent: 2603171 (1952-07-01), Smith
patent: 3140764 (1964-07-01), Cheskin
patent: 3424179 (1969-01-01), Minot
patent: 4144686 (1979-03-01), Gold
patent: 4187652 (1980-02-01), Bobrovnikov et al.

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